Purpose and Specifications

Castrol 15D738 is a premium synthetic automatic transmission fluid (ATF) designed for smooth shifting and long-lasting protection in modern vehicles. This 20-liter canister delivers exceptional performance across a wide temperature range, from -40°C cold starts to over 150°C high-heat towing, keeping your transmission fluid and responsive.

Key benefits include superior friction control for quick, precise gear changes, outstanding wear protection for clutches and gears, and resistance to oxidation that maintains clean internals. It's backward-compatible with older specs, making it a versatile choice for fleet maintenance or DIY top-ups.

• Approved for Ford Mercon LV, GM Dexron VI, BMW, VW, Honda, Toyota, Nissan, and dozens more
• Red color for easy leak detection
• Ideal for 6-speed and newer automatics

When to Use / Replace?

Use Castrol 15D738 in any automatic transmission matching its extensive approvals to prevent slippage, overheating, or premature failure. Replace every 60,000-100,000 km (or 3-5 years) under normal driving, or sooner at 30,000-50,000 km for heavy towing, city stop-go, or hot climates. Shelf life is 5 years unopened when stored cool and dry.

FAQ

Q: Is this suitable for my Ford or GM vehicle?
A: Yes, it's fully approved for Ford Mercon LV and GM Dexron VI, plus older Dexron III equivalents for seamless upgrades.

Q: Can I mix it with other ATF brands?
A: Best to fully drain and refill for optimal performance, but small top-ups are safe with compatible synthetics.

Q: What if my transmission runs hot?
A: Its synthetic formula excels up to 150°C+, reducing varnish buildup and extending component life during tough conditions.